dezariaspencer
dezariaspencer dezariaspencer
  • 02-05-2018
  • Mathematics
contestada

Solve the system using the substituiton method
5x-2y=-20
6x+y=-7

Respuesta :

nilbert
nilbert nilbert
  • 02-05-2018
Hi there!

To solve this, we need to find the value of one variable and substitute it into the equation to find the other:

6x + y = -7
y = -7 - 6x

5x - 2y = -20
5x - 2(-7 - 6x) = -20
5x + 14 + 12x = -20
17x = -34
x = -2

Now that we know the value of x, we can plug it in again to find the value of y:

x = -2
6x + y = -7
6(-2) + y = -7
-12 + y = -7
y = 5

So, the answer is x = -2 and y = 5.

Hope this helps!
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